Tweaking the settings on a PL-1

I recently reprogrammed the Fn button on my PL-1 so that it toggles auto/manual focus. Simple change, but a huge difference as it lets me decouple the shutter from the focus (though I have to constantly toggle this setting to refocus). Not as nice as having a dedicated focus button like you have on larger cameras, but better than nothing.

So this isn't a post about how clever I am - what I want to know is what things have y'all come up with to get more out of your PL-1?
--Reprogrammed buttons?
--Changed any of the defaults?
--Custom firmware (though I'm certainly not brave enough to try this myself)